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(parent: cb596ee) | patch
_umtx_op: document UMTX_OP_SEM2_WAIT copyout behavior
authorKyle Evans <kevans@FreeBSD.org>
Tue, 17 Nov 2020 03:26:56 +0000 (03:26 +0000)
committerKyle Evans <kevans@FreeBSD.org>
Tue, 17 Nov 2020 03:26:56 +0000 (03:26 +0000)
commit231f59920aeae8e07e7d5619df14063e128bfc38
tree0a837e5461d8408ed211235ad1b5c5ab7228c33ftree | snapshot
parentcb596eea82c554a5bb182e0f1e48c37191fd33bfcommit | diff
_umtx_op: document UMTX_OP_SEM2_WAIT copyout behavior

This clever technique to get a time remaining back was added to support sem_clockwait_np.

Reviewed by: kib, vangyzen
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D27160
lib/libc/sys/_umtx_op.2 diff | blob | history
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